Question

此代码

    int idPlayer1=2;
    int idPlayer2=3;

    DBHelper dbHelper = DBHelper.getInstance();
    if (idPlayer1 != 0 && idPlayer2 !=0){
        String sqlQuery = "WITH t1 AS (\n" +
                "SELECT P1.idPlayer1, P1.players1Goal, P1.players2Goal, P1.scorePlayer1 FROM Periods as P1 \n" +
                "WHERE P1.type in (1,2,3,4,31,32,33,34) and idPlayer1 = "+ idPlayer1+
                " and idPlayer2 = " + idPlayer2 + " \n" +
                "UNION ALL \n" +
                "SELECT P2.idPlayer2, P2.players2Goal, P2.Players1Goal, P2.scorePlayer2 FROM Periods as P2 \n" +
                "WHERE P2.type in (1,2,3,4,31,32,33,34) and idPlayer1 = " + idPlayer2 + " and idPlayer2 = "+idPlayer1+" \n" +
                ") \n" +
                "SELECT idPlayer1, sum(players1Goal), sum(Players2Goal) FROM t1 \n" +
                "GROUP BY idPlayer1";

        Cursor c = dbHelper.getDB().rawQuery(sqlQuery,null);
        DBHelper.logCursor(c);
        if (c != null) {
            if (c.moveToFirst()) {

                do {
                    int player12goal = c.getInt(1);
                    int player21goal = c.getInt(2);
                } while (c.moveToNext());
            }
            c.close();
        }

}

给我一个例外

10-25 07:17:08.538 3950-3950/? I/SqliteDatabaseCpp: sqlite returned: error code = 21, msg = API called with NULL prepared statement,  db=/data/data/com.jnblab.f_stat/databases/test
10-25 07:17:08.538 3950-3950/? I/SqliteDatabaseCpp: sqlite returned: error code = 21, msg = misuse at line 58929 of [8609a15dfa], db=/data/data/com.jnblab.f_stat/databases/test
10-25 07:17:08.538 3950-3950/? E/SQLiteQuery: exception: not an error; query: WITH t1 AS (
10-25 07:17:08.538 3950-3950/? E/SQLiteQuery: SELECT P1.idPlayer1, P1.players1Goal, P1.players2Goal, P1.scorePlayer1 FROM Periods as P1 
10-25 07:17:08.538 3950-3950/? E/SQLiteQuery: WHERE P1.type in (1,2,3,4,31,32,33,34) and idPlayer1 = 2 and idPlayer2 = 3 
10-25 07:17:08.538 3950-3950/? E/SQLiteQuery: UNION ALL 
10-25 07:17:08.538 3950-3950/? E/SQLiteQuery: SELECT P2.idPlayer2, P2.players2Goal, P2.Players1Goal, P2.scorePlayer2 FROM Periods as P2 
10-25 07:17:08.538 3950-3950/? E/SQLiteQuery: WHERE P2.type in (1,2,3,4,31,32,33,34) and idPlayer1 = 3 and idPlayer2 = 2 
10-25 07:17:08.538 3950-3950/? E/SQLiteQuery: ) 
10-25 07:17:08.538 3950-3950/? E/SQLiteQuery: SELECT idPlayer1, sum(players1Goal), sum(Players2Goal) FROM t1 
10-25 07:17:08.538 3950-3950/? E/SQLiteQuery: GROUP BY idPlayer1
10-25 07:17:08.538 3950-3950/? D/AndroidRuntime: Shutting down VM

在带有Api15和HTC Api 10的模拟器上，但不适用于带有api 21和Nexus手机Api21的模拟器。简单的查询执行得很好，但像这样的查询不会。

DBHelper是扩展SQLiteOpenHelper的单例。

有谁知道可能导致这种情况的原因？

Answer 1

在sqlite 3.8.3 http://www.sqlite.org/changes.html中添加了sqlite WITH，并且使用的sqlite版本是Version of SQLite used in Android?。

api15，api 10上的sqlite异常，但api21上没有

1 个答案: